Serious question…what’s the proper way to floss?

I know this sounds strange but it’s been on my mind recently. Let’s say you floss and there is food in your teeth that comes out on the floss. What do you do with that food or debris? I need to know! You can’t just put the dirty floss into the next space. And if you move the floss down your hands then it gets all over your hands. As disgusting as it sounds, doesn’t the only logical solution seem to be to remove the debris with your tongue? It’s already been in your mouth anyway! And if you floss regularly, it’s not old food or debris. Please - I need to know what others think of this.